JAUE2024-047: Heat Demand Reduction Through Cooperative Supply-Demand Control

Abstract

CEMS, one of the technologies of the Shin Sapporo Smart Community, aggregates and analyzes data on electricity and heat demand of demand buildings, and measures energy conservation and decarbonization. CEMS-based cooperative supply-demand control, which is a smart community technology, controls the temperature setting of air conditioners on the consumer side after ensuring an "appropriate thermal environment (comfort range)" by the CEMS. This allows the EC side to contribute to energy saving at the consumer side; in addition to the highly efficient operation of the heat source system at the EC side, energy saving can be achieved by reducing the heat demand of the consumer. In this study, we analyzed the actual operation data from the initial demonstration experiment of air conditioner control at Medical B (MB) in December 2023 and report the results of confirming the operation status of the air conditioner control function and verification of the energy conservation effect and found that the temperature control of the air conditioning system functioned normally. As a result, the indoor temperature decreased by 1~2°C, the energy-saving effect of 250 MJ/h was confirmed, and the indoor thermal environment was within a comfortable range. Therefore, it is clear that the room temperature control by the consumer air conditioner control can be expected to have sufficient energy-saving effects.